New Zealand MP made famous by gay marriage speech to parliament to appear on Ellen

Gay-rights supporters in Wellington kiss to celebrate New Zealand becoming the first Asia-Pacific country to legalise same-sex marriage. Picture: AFPSource:AFP

NEW Zealand MP turned gay marriage champion and internet sensation Maurice Williamson could soon add &quot;Hollywood talkshow guest&quot; to his resume after he was given approval to appear on the Ellen Degeneres show.

"The most enormous big gay rainbow" rose over his Auckland electorate that morning and he had taken it as a sign to back the change, despite critics writing to him warning he would burn in hell, he said.

He mocked those predicting a "gay onslaught".

"We are really struggling to know what the gay onslaught will look like ... We don't know if it will come down the Pakuranga Highway as a series of troops or whether it will be a gas that floats in over the electorate and locks us all in."

The speech has been viewed more than a million times on YouTube and drawn support from celebrities including Stephen Fry, Ronan Keating and Degeneres, who invited him on her US TV show.

However, he had to decline because parliament's rules could not have them pay for his flights.

But on Monday morning, Prime Minister John Key told Newstalk ZB he had approved Mr Williamson's appearance on the show, but he will have to donate any fee to charity.

Mr Williamson tweeted that he would love to be a guest "if it can be arranged".

"(Degeneres) is awesome - a real inspiration to us all."

Mr Williamson, who is married with three adopted children and describes himself as a "strong right-winger" on economic issues, became an unlikely face of the marriage equality movement, alongside fellow Nats Paul Hutchison and Chris Auchinvole.